IDE mis parses quotes on line continuations and crashes

[bperrybap]

Whenever code uses line continuation in the middle of a quoted literal string,
the IDE gets confused and ends up getting a stack overflow and crashes.
Below is a simplified boiled down example.
The extra quote inside the comment will avoid the crash as it somehow
unconfuses the IDE as to its quote matching.
The added comments after loop() are to add enough extra text
to create the stack overflow.

const char *foo = "\
hello \
world\n";

//" delete this comment line and the IDE parser will crash

void setup()
{
}

void loop()
{
}
/*
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
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*/

The issue goes away if the code uses matching quotes on each line
before the line continuation and then allows CPP to concatenate the strings.
i.e.

const char *foo = \
"hello "\
"world\n";

[ffissore]

Latest nightly doesn't crash but scrambles the source code, leading to a compilation error

[bperrybap]

The latest nightly build gets an exception stack overflow for me on 32bit linux Mint 13.

Did you do the build with this line from the code above removed?

//" delete this comment line and the IDE parser will crash

That line was in there as it tricks certain versions of the IDE into working.

--- bill

[ffissore]

Confirm. Sorry, misread the comment

[ffissore]

Fixed